Massaging implement.



G. H. COMES.

MASSAGING IMPLEMBNT.

APPLICATION FILED AUG. s, wos.

906,772. Patentedpee. 15, 1908 Wilnness'es nuenor George HC aises unmmm!` E u AJcor'neg 1H: Nmems PETERS co., wAsmNcroN, DA c.

GEORGE H. COATES, OF WORCESTER, MASSACHUSETTS.

MASSAGING IMPLEMENT.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed August 9, 1906. Serial No. 329,834.

To all whom 'it may concern:

Be it known that I, GEORGE I-I. OOATEs, a

' citizen of the United States, residing at Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in a Massaging Implement, of which the following is a specification, accompanied by drawings forming a part of the saine, in which- Figure 1 represents a side elevation of a massaging implement embodying my invention. Figs. 2 and 3 represent side elevations similar to that shown in Fig. 1, but with inclosing case and a portion of the operating parts shown in central sectional view. Fig. 4 is a central sectional view on a plane at right angles to the section shown in Figs. 2 and 3, and Fig. 5 is a detached view of the adjustable lever 11.

Similar reference letters and figures refer to similar parts in the different views.

The object of my present invention is to produce a massaging implement which may be cheaply constructed, durable in its operation and in which the' movement of the massaging pad may be varied at will, and it consists in the construction and arrangement of parts as hereinafter described and pointed out in the annexed claims.

Referring to the accompanying drawings 1 and 2 denote the two parts of a metallic case or shell which are screw threaded and attached to each other at 3. The part 2 of the shell is provided with a hollow stem 4 having an external screw thread 5 to receive the inclosing case 6 of a flexible Shaft. The hollow stem 4 Jfurnishes a bearing for a rotating spindle 7, having its end hollow for a slight distance and provided with a slot 8 or other means for attaching to the spindle the end of a fiexible shaft, whereby the spindle may be connected with a motor by which a rapid motion is imparted to the spindle. The inner end of the spindle is enlarged to form a cylindrical block 9 provided with a central longitudinal slot 10 to receive a lever 1], which is pivoted on a pin 12 carried by the cylindrical block 9. Inclosing the cylindrical block 9 and capable of sliding thereon, is a sleeve 13, carrying a pin 14 which passes through a slot 15 in the block 9, and also through an oblique slot 16 in the lever 11.

The sleeve 13 is provided at its lower edge with a iiange 17 which engages a notch 18 in a slidable bar 19 held in ways within the case. The bar 19 is provided at its end with a screw `pin 12.

thread 20 which is engaged by arotating milled nut 21 to enable the operator, by rotating the nut, to slide the bar 19 and move the sleeve 13 along the cylindrical block 9, in order to vary the position of the pin 14 in the oblique slot 16 of the lever 11, for the purpose of swinging the lever upon its pivotal The sliding bar 19 is provided with a slot 22 on one side, inclosing a pin 23 held in the case of the instrument in order to. limit the longitudinal movement of the bar.

In Fig. 2 the bar 19 is shown at one end of its movement with the pin 14 moved upward in the oblique slot 16 so as to hold the lever 11 with its longitudinal axis nearly coincident with the axis of the rotating cylindrical block 9, while in Fig. 3 the bar 19 is shown at the other end of its movement, bringin the pin 14 nearly to the outer end of the ob ique slot 16, and swinging the lever 11 on its pivotal pin 12 into a position at an oblique angle to the axis of the rotating cylindrical block 9.

When the parts above described are in the position shown in Fig. 2 the massaging pad will receive a minimum motion from the rotation of the spindle 7, and when the parts are in the position shown in Fig. 3 the massaging pad will be given its maximum movement.

J ournaled upon a cylindrical extension 24 of the lever 11 is an arm 25 secured in position by a nut 26 and extending through a slot 27 in the side of the case. The arm 25 is provided at its outer end with a longitudinal screw threaded hole 28 to receive the stem 29 of a massaging pad 30, preferably made of rubber, and provided with a series of small flexible protuberances 31 which are applied to the surface to be massaged. The lower portion of the case 2 is rovided on one side with a boss 32 to whic is attached a handle 33 by means of a screw 34, but in order to prevent the vibration of the instrument, when in rapid operation, from being transferred to the hand through the handle 33, I insert between the socket 35 of the handle and the boss 32, a cup sha ed packin 36 of some yielding material, pre erably rubber The milled nut 21 is prevented from turnin by the jar of the instrument by means of a rictional locking bolt 37 entering one of a series of recesses 38 in the side of the nut and pressed therein by means of a spiral spring 39.

The operation of my improved instrument is as Jfollows The pad 30 is applied to the surface to be massaged by the operator supporting the instrument by the handle 33, and a rapid rotary motion is given to the spindle 7 and cylindrical block 9, thereby rotating the lever 11, and causing its upper end to move in a circular path determined by the Obliquity of the lever 11 relatively to the axis ofthe rotating spindle 7 and block 9, thereby Vgiving a rapid vibratory movement to the -massaging pad 30. diminish the amplitude iof movement of the Amassaging pad-'30 l vary the/position of the In Yorder to increase or pin. 14 in the .obliquerslot 16 by means ofthe milled nut 21 and screw vthreaded barlQ, thereby varying the angle between the aXis of the rotating shaft 7 and the longitudinal axis Aof the lever'll. L The shoulder 40 of the cylindrical block 9 rests against the inner end wall oi the'caseand the opposite end oi the cylindrical block carries an annular beveled said lever, -and screw threaded means for sliding said lsleeve on said block.

2. In an implement of the class described,

the combination of an inclosing shell, a block v arranged to rotate in said shell, a lever pivot- `means for holding said nut from longitudinal movement.

.3. vInanimplementrof the class described,

the combination 'of a rotatingshaft, arlever pivotally held in the `end of said shaft and provided with an oblique slot, a in passing .through said slot, a sleeve inc osing said shaft and carrying said pin, and means Jfor adjustably holding said sleeve in any desired position, comprising a sliding bar engagin said sleeve, a nut held from longitudinal movement engaging said bar, and means for frictionally holding said nut from rotation.

4. In an implement of the class described, the combination of a frame supporting the operative parts of the implement and provided with a boss to receive a handle, a handle having a cup shaped socket inclosing the end of said boss, and a yielding cup shaped packing iilling the space between said boss and said handle, whereby the socket of the handle is held from contact with said boss.

GEORGE H. COATES. 

